AGE CHANGES IN INTELLECTUAL ABILITIES IN THE ELDERLY

该项目旨在进一步阐明 老年人智力的个体内变化。 虽然这 这个话题可能是衰老心理学中研究最多的， 争议依然存在。 显然需要复制少量的 使用多变量测量的顺序研究， 就知识分子的课程达成更好的共识， 变化和老年人群体差异的作用。 纵向 将对1，116人的原始样本进行后续测试 与美国退休人员协会合作招募 他们最初于1976年至1977年在全州29个城市进行了测试， 佛罗里达。 数据是在一系列广泛的测试中收集的， 智力功能。 重新测试的数据将用于评估假设 在因素结构、年龄变化和队列稳定性方面， 因素平均值的差异以及被认为会影响的变量的作用 智力表现，如主观健康评级，教育 成就和性。 这些问题将通过应用 约束因子分析和线性结构方程模型。 此外，本发明还 确认死者身份将有助于重新分析 初步数据，以评估有关死亡的隆起假设， 智力表现。 复制是科学研究的一个核心特征， 认识 这里所采取的观点是，目前的争议与 老年人的智力功能不太可能 解决，直到进一步复制少数以前的 完成了连续的研究。 当前的理想特征 建议包括异常大的初始样本和非常广泛的 采用成套智力测验。

The Project is intended to shed further light on the nature of intra-individual change in intelligence in the elderly. Although this topic is probably the most heavily researched in the psychology of aging, controversies remain. There is a clear need to replicate the small number of sequential studies using multivariate measures with a view toward achieving a better level of consensus as to the course of intellectual change and the role of cohort differences within the elderly. Longitudinal follow-up testing will be attempted on an original sample of 1,116 persons recruited in cooperation with the American Association of Retired Persons who were tested originally in 1976-7 in 29 cities throughout the state of Florida. Data were gathered on an extensive battery of tests of intellectual functioning. Retest data will be used to evaluate hypotheses regarding the stability of factor structure, age changes and cohort differences in factor means and the role of variables believed to influence intellectual performance such as subjective health ratings, educational attainment and sex. These issues are to be studied through applications of restricted factor analysis and linear structural equation models. Further, identification of deceased individuals will allow for reanalyses of the initial data to evaluate hypotheses regarding eminence of death and intellectual performance. Replication is a central feature of scientific understanding. The view taken here is that current controversies with regard to intellectual functioning in the elderly are not likely to be resolved until further replications of the small number of previous sequential studies are completed. Desirable features of the current proposal include the unusually large initial sample and the very extensive battery of intellectual ability test employed.